This PR adds some of the necessary project data to the personal
dashboard API: project names and ids, and the roles that the user has in
each of these projects.
I have not added project owners yet, as that would increase the
complexity a bit and I'd rather focus on that in a separate PR.
I have also not added projects you are part of through a group, though I
have added a placeholder test for that. I will address this in a
follow-up.